Maryam EL HAMZAOUI
(Cadi Ayyad University, Faculty of Sciences Semlalia, Laboratory of Excellence in Agrobiotechnology and Bioengineering, AgroBiotech Centre, Research Unit Accredited by CNRST (URL05-CNRST), Plant Resources Protection and Valorisation Team, Marrakech, Morocco)
Salvia taraxacifolia, a species from the Lamiaceae family widely used in traditional Moroccan medicine, was investigated for its essential oil-producing structures, chemical profile, and antioxidant activity. Histological examination of the leaves revealed the presence of capitate and peltate glandular trichomes, typical secretory structures in the Lamiaceae family, involved in the biosynthesis and storage of volatile compounds. The essential oil obtained from the aerial parts was analyzed using gas chromatography–mass spectrometry (GC-MS). A total of 57 compounds were identified, representing 99.37% of the total oil content. The oil was mainly composed of sesquiterpene hydrocarbons, with germacrene D (18.94%) as the most abundant compound, along with significant levels of monoterpenes, particularly limonene (8.63%). Antioxidant activity was assessed using DPPH and FRAP assays. The oil exhibited moderate antioxidant potential, with IC₅₀ values of 350 µg/mL (DPPH) and 368 µg/mL (FRAP). These results suggest a synergistic effect among the oil's constituents contributing to its radical-scavenging capacity. This study supports the potential use of S. taraxacifolia essential oil as a natural antioxidant agent, offering valuable applications in the pharmaceutical and cosmetic industries.
Keywords: Salvia taraxacifolia, essential oil, histological analysis, glandular trichomes, chemical composition, GC-MS, antioxidant activity, DPPH assay, FRAP assay.
Maryam EL HAMZAOUI
(Cadi Ayyad University, Faculty of Sciences Semlalia, Laboratory of Excellence in Agrobiotechnology and Bioengineering, AgroBiotech Centre, Research Unit Accredited by CNRST (URL05-CNRST), Plant Resources Protection and Valorisation Team, Marrakech, Morocco)
Dr
Karima BENRAZZOUK
(Cadi Ayyad University, Faculty of Sciences Semlalia, Laboratory of Excellence in Agrobiotechnology and Bioengineering, AgroBiotech Centre, Research Unit Accredited by CNRST (URL05-CNRST), Plant Resources Protection and Valorisation Team, Marrakech, Morocco)
Dr
Soukaina OUHADDOU
(Cadi Ayyad University, Faculty of Sciences Semlalia, Laboratory of Excellence in Agrobiotechnology and Bioengineering, AgroBiotech Centre, Research Unit Accredited by CNRST (URL05-CNRST), Plant Resources Protection and Valorisation Team, Marrakech, Morocco)
Dr
Najoua ZAROUAL
(Cadi Ayyad University, Faculty of Sciences Semlalia, Laboratory of Excellence in Agrobiotechnology and Bioengineering, AgroBiotech Centre, Research Unit Accredited by CNRST (URL05-CNRST), Plant Resources Protection and Valorisation Team, Marrakech, Morocco)
Prof.
Khalid BEKKOUCHE
(Cadi Ayyad University, Faculty of Sciences Semlalia, Laboratory of Excellence in Agrobiotechnology and Bioengineering, AgroBiotech Centre, Research Unit Accredited by CNRST (URL05-CNRST), Plant Resources Protection and Valorisation Team, Marrakech, Morocco)
Prof.
Mustapha LARHSINI
(Cadi Ayyad University, Faculty of Sciences Semlalia, Laboratory of Excellence in Agrobiotechnology and Bioengineering, AgroBiotech Centre, Research Unit Accredited by CNRST (URL05-CNRST), Plant Resources Protection and Valorisation Team, Marrakech, Morocco)
Prof.
Mohamed MARKOUK
(Cadi Ayyad University, Faculty of Sciences Semlalia, Laboratory of Excellence in Agrobiotechnology and Bioengineering, AgroBiotech Centre, Research Unit Accredited by CNRST (URL05-CNRST), Plant Resources Protection and Valorisation Team, Marrakech, Morocco)
